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How-to articles, tricks, and solutions about ECLIPSE

Access restriction on class due to restriction on required library rt.jar?

If you are getting an "access restriction" error on a class in your Java code, it means that you are trying to access a class or member (field or method) that has restricted access.

java eclipse wsdl stub wsdl2java

Class has been compiled by a more recent version of the Java Environment

If you get the error "class has been compiled by a more recent version of the Java Environment", it means that you are trying to run a class file that was compiled with a newer version of Java than the one you have installed.

java eclipse java-8 selenium firefox

Create a Maven project in Eclipse complains "Could not resolve archetype"

There could be several reasons why you are getting the error "Could not resolve archetype" when trying to create a Maven project in Eclipse.

java eclipse maven

Eclipse - no Java (JRE) / (JDK) ... no virtual machine

If you see an error message in Eclipse saying "no Java (JRE) / (JDK) ... no virtual machine", it means that Eclipse is unable to find a valid Java installation on your system.

java path eclipse

Eclipse "Error: Could not find or load main class"

If you are seeing an error message that says "Error: Could not find or load main class", it is likely that there is a problem with the classpath for your project.

java git eclipse jar classpath

Eclipse comment/uncomment shortcut?

In Eclipse, you can use the following keyboard shortcuts to comment and uncomment lines of code:

java eclipse keyboard-shortcuts shortcut

Eclipse error ... cannot be resolved to a type

If you are seeing an error in Eclipse that says "cannot be resolved to a type," it usually means that Eclipse is unable to find the class or interface that you are trying to use in your code.

java eclipse

Eclipse error: "The import XXX cannot be resolved"

If you get the error "The import XXX cannot be resolved" in Eclipse, it means that the class or package that you are trying to import cannot be found in the classpath of your project.

java import eclipse jar buildpath

Eclipse java debugging: source not found

If you are trying to debug a Java application in Eclipse and you see the error "Source not found", it means that the source code for the class you are trying to debug is not available in the current project or the project build path.

java eclipse debugging

Eclipse reported "Failed to load JNI shared library"

If you see the error "Failed to load JNI shared library" when starting Eclipse, it means that the Java Native Interface (JNI) library required by Eclipse cannot be found or loaded.

java eclipse java-native-interface